Update app.py

app.py

@@ -20,7 +20,7 @@ app = Flask(__name__)
 app.secret_key = os.urandom(24)
 app.permanent_session_lifetime = timedelta(days=7)
 
-ADMIN_PASS = os.getenv("ADMIN_PASS1", "admin123")
+ADMIN_PASS = os.getenv("ADMIN_PASS", "admin123")
 
 DATA_DIR = 'pos_data'
 os.makedirs(DATA_DIR, exist_ok=True)